A water-cooling heat dissipation device for a video card PCB
By using a water-cooling device on the graphics card PCB, and employing horizontal pipes and pin connectors, the problems of large space occupation and poor compatibility of water-cooling radiators are solved, achieving higher chassis compatibility and cleaner installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN COLORFUL YUGONG INFORMATION TECH DEV CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing water cooling radiators use a vertical cable exit design, which results in a large space occupation and limits the compatibility of water-cooled graphics cards with different case types.
Design a water-cooling heat dissipation device for graphics card PCBs. It adopts horizontally arranged pipes and fixing components, combined with a fan connection method of PIN plug and socket, to reduce exposed cables and improve installation space utilization and aesthetics.
It effectively saves installation space, improves the compatibility of graphics cards with different types of cases, makes the overall installation neater and more aesthetically pleasing, and makes fan connection more convenient.
Smart Images

Figure CN224536429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of graphics card technology, and in particular to a water-cooling heat dissipation device for a graphics card PCB. Background Technology
[0002] In the field of computer hardware, the graphics card, as a key component for processing graphics and computing tasks, directly affects the stability and performance of the system due to its heat dissipation performance. Currently, graphics card cooling solutions are mainly divided into two categories: air cooling and water cooling.
[0003] Air coolers have a relatively simple structure, but their heat dissipation efficiency is limited by air convection and the surface area of the heat sink, which may make it difficult to control the core temperature of the graphics card within the ideal range. In contrast, water coolers, with their efficient heat transfer medium, can achieve better heat dissipation performance, especially when dealing with the huge amount of heat generated by high-power graphics cards, where their advantages are more obvious.
[0004] However, in practical applications, many water cooling radiators adopt a vertical cable exit design. Although this method is more straightforward in structure, it results in the inlet and outlet ports and connecting pipes occupying a large vertical space. Especially in compact cases or systems with complex internal structures, it can interfere with other components inside the case, thus limiting the adaptability of water-cooled graphics cards to different case types.
[0005] Based on this, in order to further optimize the applicability of existing water cooling devices, we propose a water cooling device for graphics card PCBs. Utility Model Content
[0006] The purpose of this invention is to address the shortcomings of existing water-cooling radiators, such as the vertical cable routing design which limits the compatibility of water-cooled graphics cards with different chassis types. This invention proposes a water-cooling device for graphics card PCBs.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] Design a water-cooling device for a graphics card PCB, including:
[0009] PCB, water cooling head fixed on PCB and water drainage device, wherein the water cooling head is connected to the water drainage device through two horizontally arranged pipes;
[0010] The PCB has a top cover and a back plate on both sides respectively. The edge of the top cover is formed with a clearance opening to avoid the pipes. The outer sides of the two pipes are connected to a fixing member, which is placed in the clearance opening and fixedly connected to the top cover.
[0011] Furthermore, the water drainage device includes a water drain and several fans fixed to the front end of the water drain, with two pipes connected to the water drain;
[0012] The fans are electrically connected in sequence, and one of the fans is electrically connected to the PCB via a wire.
[0013] Furthermore, each side of the fan is provided with a PIN plug and a PIN socket, and two adjacent fans are connected and electrically connected through the PIN plug and PIN socket.
[0014] Furthermore, the fastener includes two connecting portions and two sleeve portions formed on the connecting portions, with the two pipes respectively passing through the two sleeve portions.
[0015] Furthermore, a wire hole is provided in the middle of the connecting part for the wire to enter, and upper connecting arms are formed on both sides above the connecting part. The upper cover is provided with an insertion port above the clearance opening to accommodate the upper connecting arms, and the upper connecting arms are fixed in the insertion port by fasteners.
[0016] Furthermore, a lower connecting arm is formed below the connecting part, and a connecting post is formed on the inner side of the upper cover. The connecting post abuts against the lower connecting arm and is fixed by fasteners.
[0017] Furthermore, an impeller motor assembly is installed inside the water cooling head.
[0018] This invention presents a water-cooling device for a graphics card PCB, which offers the following advantages: By horizontally extending the pipes from the rear of the graphics card and securing them with fasteners, this invention effectively saves installation space and improves the graphics card's compatibility with different types of computer cases. Furthermore, the fans in the water-cooling device utilize a pin-to-pin connector connection, replacing traditional fan cables and achieving a "wireless" connection between fans. The fan wires are cleverly routed along the pipes, passing through the fasteners and ultimately connecting to the PCB, reducing exposed cables and improving both aesthetics and overall tidiness of the installation. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present utility model;
[0020] Figure 2 This is a schematic diagram of the PCB structure of this utility model;
[0021] Figure 3 for Figure 2 A magnified structural diagram of area A;
[0022] Figure 4This is a schematic diagram of the lower connecting arm structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the water discharge device of this utility model;
[0024] Figure 6 This is a schematic diagram of the fan structure of this utility model.
[0025] In the diagram: 1. PCB; 2. Water cooling head; 21. Impeller motor assembly; 3. Water drainage device; 31. Water drainage; 32. Fan; 33. Wire; 34. PIN connector; 35. PIN socket; 4. Pipe; 5. Top cover; 51. Clearance opening; 52. Inlet; 53. Connecting post; 6. Back plate; 7. Fixing component; 71. Connecting part; 72. Sleeve part; 73. Wire hole; 74. Upper connecting arm; 75. Lower connecting arm. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] Reference Figure 1-6 As one embodiment of this utility model, a water-cooling heat dissipation device for a graphics card PCB is disclosed. Specifically, the heat dissipation device includes a PCB1, a water-cooling head 2 fixed on the PCB1, and a water-drain device 3. The water-cooling head 2 is connected to the water-drain device 3 through two horizontally arranged pipes 4. The water-cooling head 2 is fixed on the heat-generating element of the PCB1, such as the GPU. In this embodiment, in order to ensure the flow of water, an impeller motor assembly 21 is installed inside the water-cooling head 2. The impeller motor assembly 21 includes a motor and an impeller. The motor should also be electrically connected to the PCB1 through wires to realize power supply control. The motor drives the impeller to rotate, thereby controlling the continuous flow of water in the two pipes 4. This method is a conventional method for those skilled in the art and will not be described in detail here.
[0028] The PCB1 is covered by an upper cover 5 and a back plate 6 on both sides respectively. The edge of the upper cover 5 is formed with a clearance opening 51 to avoid the pipe 4. The outer sides of the two pipes 4 are connected to a fixing member 7. The fixing member 7 is placed in the clearance opening 51 and fixedly connected to the upper cover 5.
[0029] In some embodiments, the water duct device 3 of the present invention includes a water duct 31 and a plurality of fans 32 fixed at the front end of the water duct 31. The water duct 31 is a common water-cooled radiator structure, and two pipes 4 are connected to the water duct 31.
[0030] The fans 32 are electrically connected in sequence, and one of the fans 32 is electrically connected to the PCB1 via a wire 33.
[0031] In this embodiment, water is circulated through two pipes 4. The water enters the water cooling head 2 and the water drain 31 in sequence through the two pipes 4. When it enters the water cooling head 2, it can carry away the heat. Then, when it enters the water drain 31, it is cooled by the fan 32 to ensure the continuity of water cooling.
[0032] It should be noted that, in this embodiment, the fan 32 is provided with a PIN plug 34 and a PIN socket 35 on both sides. Two adjacent fans 32 are connected and electrically conductive through the PIN plug 34 and PIN socket 35. That is, when two adjacent fans 32 are connected, they are electrically connected through the corresponding PIN plug 34 and PIN socket 35 on their sides. Of course, the PIN plug 34 and PIN socket 35 on each fan 32 should be electrically conductive. The wire 33 should also be connected to one of the fans 32 through the PIN plug 34 or PIN socket 35 to provide power to the fan 32. This ensures that the wires of the entire water drainage device 3 are not exposed, greatly improving the aesthetics.
[0033] In addition, since the wire 33 is directly connected to the PCB1 in this embodiment, the power supply can be controlled by the PCB1 of the graphics card, thereby improving the convenience of wiring and power supply control of the fan 32.
[0034] In some embodiments, the fixing member 7 of this utility model includes two connecting parts 71 and two sleeve parts 72 formed on the connecting parts 71. The two pipes 4 are respectively inserted between the two sleeve parts 72. Specifically, in this embodiment, the sleeve parts 72 and the connecting parts 71 are integrally formed. The inner diameter of the sleeve part 72 is adapted to the outer diameter of the pipe 4. The fixing member 7 is used to limit and fix the two pipes 4 to ensure the connection stability of the pipes 4. Preferably, the pipes 4 in this embodiment can be metal pipes to ensure a certain supporting strength.
[0035] Based on the above embodiments, in this embodiment, a wire hole 73 is provided in the middle of the connecting part 71 for the wire 33 to enter. Upper connecting arms 74 are formed on both sides above the connecting part 71. The upper cover 5 is provided with an insertion port 52 above the clearance opening 51 to accommodate the upper connecting arm 74. The upper connecting arm 74 is fixed in the insertion port 52 by fasteners.
[0036] In addition, a lower connecting arm 75 is formed below the connecting part 71 in this embodiment, and a connecting post 53 is formed on the inner side of the upper cover 5. The connecting post 53 abuts against the lower connecting arm 75 and is connected and fixed by fasteners. Of course, the fasteners in this embodiment can be bolts.
[0037] In other words, during the actual installation, the two pipes 4 can be inserted into the two sleeves 72 first to maintain the connection between the water cooling head 2 and the PCB1. Then, the upper cover 5 and the PCB1 are connected, and the fastener 7 is placed into the clearance opening 51 of the upper cover 5. At this time, the upper connecting arm 74 and the lower connecting arm 75 are locked to the inlet 52 and the connecting post 53 respectively with the fasteners. Then, the back plate 6 is fixed to complete the overall connection and assembly.
[0038] In summary, this invention effectively saves installation space and improves the graphics card's compatibility with different types of cases by horizontally leading the pipe 4 out from the rear of the graphics card and securing it with the fastener 7. Furthermore, the fan 32 of the water duct device 3 uses a connection method of pin connector 34 and pin socket 35, replacing the traditional fan cable connection and achieving a "wireless" connection between fans. The wire 33 of the fan 32 cleverly passes along the pipe 4 through the fastener 7 and finally connects to the PCB1, reducing exposed cables and improving both aesthetics and overall tidiness of the installation.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A water-cooling heat dissipation device for a graphics card PCB, characterized in that, include: PCB (1), water cooling head (2) fixed on PCB (1) and water drainage device (3), wherein the water cooling head (2) is connected to the water drainage device (3) through two horizontally arranged pipes (4); Among them, a top cover (5) and a back plate (6) are respectively covered on both sides of the PCB (1). The edge of the top cover (5) is formed with a clearance opening (51) to avoid the pipe (4). The outer sides of the two pipes (4) are connected to a fastener (7). The fastener (7) is placed in the clearance opening (51) and fixedly connected to the top cover (5).
2. The water-cooling heat dissipation device for a graphics card PCB according to claim 1, characterized in that: The water drainage device (3) includes a water drain (31) and several fans (32) fixed at the front end of the water drain (31), and two pipes (44) are connected to the water drain (31); The fans (32) are electrically connected in sequence, and one of the fans (32) is electrically connected to the PCB (1) via a wire (33).
3. The water-cooling heat dissipation device for a graphics card PCB according to claim 2, characterized in that: The fan (32) is provided with a PIN plug (34) and a PIN socket (35) on both sides respectively. Two adjacent fans (32) are connected and electrically connected through the PIN plug (34) and PIN socket (35).
4. A water-cooling heat dissipation device for a graphics card PCB according to claim 2, characterized in that: The fastener (7) includes two connecting parts (71) and two sleeve parts (72) formed on the connecting parts (71), and the two pipes (4) are respectively inserted between the two sleeve parts (72).
5. A water-cooling heat dissipation device for a graphics card PCB according to claim 4, characterized in that: A wire hole (73) for the wire (33) to enter is provided in the middle of the connecting part (71). Upper connecting arms (74) are formed on both sides above the connecting part (71). The upper cover (5) has an insertion port (52) above the relief opening (51) to accommodate the upper connecting arm (74). The upper connecting arm (74) is fixed in the insertion port (52) by fasteners.
6. A water-cooling heat dissipation device for a graphics card PCB according to claim 4, characterized in that: A lower connecting arm (75) is formed below the connecting part (71), and a connecting post (53) is formed on the inner side of the upper cover (5). The connecting post (53) abuts against the lower connecting arm (75) and is fixed by fasteners.
7. A water-cooling heat dissipation device for a graphics card PCB according to claim 1, characterized in that: The water cooling head (2) has an impeller motor assembly (21) installed inside.